TY - JOUR
T1 - RELICS
T2 - A Very Large (θ E∼ 40″) Cluster Lens-RXC J0032.1+1808
AU - Acebron, Ana
AU - Zitrin, Adi
AU - Coe, Dan
AU - Mahler, Guillaume
AU - Sharon, Keren
AU - Oguri, Masamune
AU - Bradač, Maruša
AU - Bradley, Larry D.
AU - Frye, Brenda
AU - Forman, Christine J.
AU - Strait, Victoria
AU - Su, Yuanyuan
AU - Umetsu, Keiichi
AU - Andrade-Santos, Felipe
AU - Avila, Roberto J.
AU - Carrasco, Daniela
AU - Cerny, Catherine
AU - Czakon, Nicole G.
AU - Dawson, William A.
AU - Fox, Carter
AU - Hoag, Austin T.
AU - Huang, Kuang Han
AU - Johnson, Traci L.
AU - Kikuchihara, Shotaro
AU - Lam, Daniel
AU - Lovisari, Lorenzo
AU - Mainali, Ramesh
AU - Nonino, Mario
AU - Oesch, Pascal A.
AU - Ogaz, Sara
AU - Ouchi, Masami
AU - Past, Matthew
AU - Paterno-Mahler, Rachel
AU - Peterson, Avery
AU - Ryan, Russell E.
AU - Salmon, Brett
AU - Stark, Daniel P.
AU - Toft, Sune
AU - Trenti, Michele
AU - Vulcani, Benedetta
AU - Welch, Brian
N1 - Publisher Copyright:
© 2020. The American Astronomical Society. All rights reserved..
PY - 2020/7/20
Y1 - 2020/7/20
N2 - Extensive surveys with the Hubble Space Telescope over the past decade, targeting some of the most massive clusters in the sky, have uncovered dozens of galaxy cluster strong lenses. The massive cluster strong-lens scale is typically θ E ∼ 10″ to ∼30″-35″, with only a handful of clusters known with Einstein radii θ E ∼ 40″ or above (for z source = 2, nominally). Here we report another very large cluster lens, RXC J0032.1+1808 (z = 0.3956), the second-richest cluster in the redMapper cluster catalog and the 85th most massive cluster in the Planck Sunyaev-Zel'dovich catalog. With our light-traces-mass and fully parametric approaches, we construct strong-lensing models based on 18 multiple images of five background galaxies newly identified in the Hubble data, mainly from the Reionization Lensing Cluster Survey (RELICS), in addition to a known sextuply imaged system in this cluster. Furthermore, we compare these models to Lenstool and GLAFIC models that were produced independently as part of the RELICS program. All models reveal a large effective Einstein radius of θ E ≃ 40″ (z source = 2), owing to the obvious concentration of substructures near the cluster center. Although RXC J0032.1+1808 has a very large critical area and high lensing strength, only three magnified high-redshift candidates are found within the field targeted by RELICS. Nevertheless, we expect many more high-redshift candidates will be seen in wider and deeper observations with Hubble or the James Webb Space Telescope. Finally, the comparison between several algorithms demonstrates that the total error budget is largely dominated by systematic uncertainties.
AB - Extensive surveys with the Hubble Space Telescope over the past decade, targeting some of the most massive clusters in the sky, have uncovered dozens of galaxy cluster strong lenses. The massive cluster strong-lens scale is typically θ E ∼ 10″ to ∼30″-35″, with only a handful of clusters known with Einstein radii θ E ∼ 40″ or above (for z source = 2, nominally). Here we report another very large cluster lens, RXC J0032.1+1808 (z = 0.3956), the second-richest cluster in the redMapper cluster catalog and the 85th most massive cluster in the Planck Sunyaev-Zel'dovich catalog. With our light-traces-mass and fully parametric approaches, we construct strong-lensing models based on 18 multiple images of five background galaxies newly identified in the Hubble data, mainly from the Reionization Lensing Cluster Survey (RELICS), in addition to a known sextuply imaged system in this cluster. Furthermore, we compare these models to Lenstool and GLAFIC models that were produced independently as part of the RELICS program. All models reveal a large effective Einstein radius of θ E ≃ 40″ (z source = 2), owing to the obvious concentration of substructures near the cluster center. Although RXC J0032.1+1808 has a very large critical area and high lensing strength, only three magnified high-redshift candidates are found within the field targeted by RELICS. Nevertheless, we expect many more high-redshift candidates will be seen in wider and deeper observations with Hubble or the James Webb Space Telescope. Finally, the comparison between several algorithms demonstrates that the total error budget is largely dominated by systematic uncertainties.
UR - http://www.scopus.com/inward/record.url?scp=85089012272&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089012272&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ab929d
DO - 10.3847/1538-4357/ab929d
M3 - Review article
AN - SCOPUS:85089012272
SN - 0004-637X
VL - 898
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 6
ER -